A new and convenient synthesis of benzo[1,2 : 4,5]dicyclobutenes
Abstract
A new synthesis of the dicyclobuta-p-benzoquinone derivative (4) and the reactions of (4) or its masked quinone derivative (7) with organolithium followed by reduction provide a new route for the preparation of 3,6-dialkyl- and 6-alkyl-3-hydroxybenzo[1,2 : 4,5]dicyclobutenes (6) and (9).